Several of my beta users have recommended PhotoSync. I've used Resilio Sync on my iOS test device successfully as well. Most NAS providers (like Synology and

Several of my beta users have recommended PhotoSync. I've used Resilio Sync on my iOS test device successfully as well. Most NAS providers (like Synology and QNAP) also have native sync apps. It's good to have options so if one gives you attitude, you can switch it out. I wrote up more details here: https://photostructure.com/faq/how-do-i-safely-store-files/#how-do-i-back-up-files-on-my-phone https://photostructure.com/faq/how-do-i-safely-store-files/#...